Mechanical movement.



T. A. G. BOTH. MECHANICAL MOVEMENT. Arrpl'oumx mum JULY 2, 1910.

Patented A 8,1911.

2 sums-sum 1.'

INVENTOR t ATTORNEY I BY WITNESSES 11-( h; N. M

T. A. G. BOTH.

MECHANICAL MOVEMENT. Arrmoumu mum JULY 2; 1910.-

Patented Aug. 8, 1911.

2 SHEETS-SHEET 2.

N; man v ll'h Willi F QC.

J' monusr INVENTOR UNITED STATES PATENT. OFFICE.

TONJ-ES AUGUST CARL BOTH, OF NEW YORK, N. Y., ASIGNOR TO IDA S. ROSENHEIM, OF NEW YORK, N. Y.

MECHANICAL MOVEMENT.

Specification of Letters Patent. Patented Aug. 8, 1911.

Application filed July 2, 1910.- Serial No. 570,137.

To all whom it may concern:

Be it known that I, TONJES AUGUST CARL Born, a citizen'of the UnitedStates and a resident of. New York city, in the county of New York andState of New York, have invented new and useful Improvements inMechanical Movements, .of which the following is a specification, takenin connection with the accompanying drawings, which form a part of thesame.

This invention relates to mechanical movements adapted for universalapplication.

More particularly it relates to a mechanical movement which will make aquick make as well as a quick break when used as the operating mechanismof an electric switch, though of course, it is to be understood that mypresent invention is notto be limited to such use. a

In the accompanying drawings showing illustrative embodiments of myinvention and in which the samereference numerals refer to similar partsin the several figures,Figure 1 is a vertical section through anelectric light socket equipped with my improved mechanical movement asthe operating switch mechanism; Fig. 2 is a horizontal section on line22 looking down in the direction of the arrows; Fig. 3 is a verticalsection through the socket, a part of the structure being shown in sideelevation for purposes of better illustration; Fig. 4 is a detail planview of the center contact plate with the arm shown in substantially thesame planeas the plate; Fig. 5 is a detail plan view of the blank fromwhich the hills and valleys of the driven member are preferably made;Fig. 6 is a perspective view of the driven member with its differentparts uuassembled; Fig. 7 is a perspective view, partly in section ofthe socket; Fig. 8 is a perspective view of one form of the screw shell;Fig. 9 is a side elevation of one form of key; Fig. 10 is a fragmentarydetail view, partly in side elevation and partly in vertical section;Fig. 11 is a detail perspective and sectional view of the one pieceinsulating receptacle; Fig. 12 is a detail perspective view of thepreferred form of compression member; Fig. 13 is a plan View of adetail; Fig. 14 is a detail view of a modification; Fig. 15 is a detailview of a metallic disk used in the construction shown in Fig. 11; F ig:16 is a detail sectional view showing the preferred form of'securing thespring contact to the screw shell; Fig. 17 is a detail plan view of ablank from which the driven member maybemade, a portion of the figurebeing broken away; Fig. 18 is a detail perspective View of the driven.member formed from the blank shown in Fig. 17; and F ig. 19 is a detailvertical section showing a modified form of securing the driving memberin the closed receptacle.

In the illustrative embodiments of the invention shown, 1 is an electriclight socket provided with the usual or any approved form of outer shell2 and cap 3 with the usual or any form of insulating lining 4 and 5 forthe shell and cap respectively. These arethe mere outer coverings for mymechanical movement when used to operate the switch in an electric lightsocket and are no part of-my invention. Stripped of this outer coveringmy invention includes the mechanical movement shown and, when used withan electric light socket the insulating receptacle 6 closed on all sidesbut the bottom and the screw shell 11 for closing the bottom of thereceptacle. The receptacle completely incloses and protects the switchmechanism and prevents any sparks or short circuiting of the currentbetween the switch mechanism and the shell 2 or cap 3. As I have hereshown it this receptacle 6 has substantially the form of an inverted cuphaving a head 8 and a mouth 9, see Figs. 1 and 11. The mouth 9 is closedby the upper portion 10 of the screw shell contact 11, Figs. 1, 3, 7 and8, thereby-forming a completely inclosed opening 12 to receive andcompletely protect my mechanical movementz The screw shell 11 is held tothe receptacle 6 by means of the center contact. In the preferredconstruction, but to which my invention is not to be limited this centercontact is a plate 13, which is preferably made from stamped sheet metalby forming a blank 14 (Fig. 4) which preferably includes an arm15pmvided with an opening 16 and is preferably screw threaded to receivethe binding screw 17, Figs. 3 and 7, and generally, though notnecessarily with a lug 18. At the same time that the blank is stamped itis provided with ears 19, 19. After this blank 1s stamped the arm 15 isbrought up into substantially right angles to the plate 13 and the lug18, if one is used, is bent at substantially right angles to the arm,Fig. 3. The ears 19, 19 are then'pressed downward into the positionshown in Figs. 3 and 7 to form a spring center contact for the elec triclight socket 1.

Between the lower surface of the head 10 of the shell contact 11 and theupper surface of the center contact 14 I mount an insulating disk 20 ofany approved construction usually a disk of mica. The center contact isthen secured to the insulating receptacle 6, which is usually ofporcelain, orother insulating material, by any suitable fastening meanswhich will at the same time fasten the screw shell 11 to the receptacle6. A very efficient means and one which I preferablyemploy are twoscrews 21, 21 taking through the apertures 22, 22 on the center contact,the openings 23 and 24 in the screw shell 11 and the openings 25, 25 inthe insulatingreceptacle 6, their ends coiiperatingwith nuts 26, 26,Fig. 7 in the enlarged openings 27, 27 Figs. 7 and 11, in the receptacle 6. These enlarged openings 27 being preferably, though notnecessarily, non-circular to cooperate with the nuts 26, 26, and preventtheir rotation while the screws are being screwed into them.

My mechanical movement comprises a driving and a driven member, and aresilient member to cooperate with the driven member and cause it tomove laterally upon the driving member.

In the present invention the driving member is an axle orarbor 28 andupon this element is mounted the driven member 29 Figs. 1 and 6. Thisdriven member 29 is in the present invention formed of a single memberor a plurality of parts. The body 30, Fig. 6, of the driven member isformed substantially as a disk or plate and is provided with anon-circular opening 31 to receive the non-circular portion of thedriving member 28; and is further provided with two openings 32, 32 forthe reception of the fingers 33, 33 of the metallic member 34 whichforms the hills 35 and valleys 36. The member 34 on which these hillsand valleys are formed is preferably made from a blank 37, Fig. 5,stamped from sheet metal, though of course it may be formed from othermaterial, and if desired even cast or otherwise formed. Preferably,however, for the sake of cheapness of manufacture it is made fromametallic or other blank 37 having an opening 38 for the passage of thedriving member 28 and with wings 39, 39, Fig. 5. This blank when bentupon itself as shown in Fig. 6 forms the hills and valleys 36. Oneincline surface between the two hills and valleys being upon the surface40 of the wings 39, 39 and the other incline surface being on the edges41 41 of said saunas wings 39, as is more clearly shown in Figs. 2 and6.

The fingers 33, 33 are passed through the openings 32, 32 of the bodymember 30 and.

their ends are pressed away from each other to secure them to the bodymember. Of course, it is to be understood, however, that this is merelyone manner of securing the member forming the hills and valleys to thebody member and that any suitable means may be used to accomplish thesame purpose.

With the driven member I use a resilient member to cooperate with thehills and valleys. Preferably, though not necessarily, this member is asingle integral spring 42, Figs. 2 and 12, having arms 43, 43 to contactwith and ride upon the hills and valleys of the driven member, Fig. 2.

From the mechanism so fardescribed it is clear that if the drivingmember 28 is given a partial rotation of approximately 90 degrees thedriven member, due to its non-circular opening cooperating with thenon-circular portion of. the driving member, will also be given the samerotary movement as there is substantially no relative rotary movementbetween the driving and driven members. This, however, will cause thearms 43, 43 of the resilient'member 42 to be spread apart because a hillwill then be forced beneath the arms where there was formerly a valley.The tension of the spring arms upon the present hill will cause theentire driven member to move laterally upon the driving member untilsuch time as the arms 43, 43 come to rest in the succeeding valley, whenthe parts will remain in that position until another partial I may, asin the previous patent referred to, cut away'or notch the hills andvalleys as at 44, 44 to hold the arms '43, 43 until the operating hillhas forced the arms apart to their maximun'v movement, when the maximumenergy will be stored in the resilient member. Substantially at thisinstant the driven member will complete its rotary movement bringing thearms 43, 43

out of the notches, 44, 44, onto the smooth I surfaces of the hill whenthe arms will instantly tend to slide down into the succeeding valleyand actuate the driven member with a quick snap as previously described.These notches 44, 44 therefore tend to hold or retard the action of thespring until it has received its maximumcompression or energy.

I have shown my mechanical movement in an electric light socket to makea quick make as well as a quick break of the circuit, both of which arehighly desirable to prevent arcing or burning of the interior mechanismof the socket. To doubly insure that the contacts shall be thoroughlyprotected and under no circumstances whatever can dirt or foreign matterget to the mechanical movement when so used, I mount it within theinsulating closed receptacle 6, the

mouth 9 of which is closed by the screw shell contact, as alreadydescribed. This screw shell 11 has in Fig. 8 a tongue cut out of itshead 10 and bent up to form a contact 45, which extends up into theopening 12 in the closed insulating receptacle 6. Separated from butadjacent to this contact is another similar contact 144 to which thefeed wire 145 is electrically connected .in any suitable manner, as bythe binding post 46. i

.In the preferred construction I attach the spring contact 345, Fig. 16,to the screw shell 11 by any suitable means, such as rivets 346. In thisconstruction it is not necessary to cutthe shell 11 to form the contact,and the contact 345 may be of different material and strength from thatfrom which the shell is formed.

\Vhen my mechanical movement is used as a switch mechanism I secure inany suitable manner a connecting member 47 to the driven member 29. Thisconductingmember may be formed of various shapes and configurations. I-have found in practice that a veryeflicient conducting member is L themetallic ring 47 which is secured in any suitable manner to the drivenmember 29 such for example as by having lugs 48, 48 which are forced orcrimped into openings 49, 49 in the insulating body member 30.

It is clear that upon apartial rotation of approximately 90 degrees ofthe driving member, axle or arbor 28 the driven member is also rotatedto the same extent which will'cause the arms 43,43 coiiperating with thehills and valleys, as previouslv described, to move the driven memberwith its conductingring 47 into contact with the contacts 45 and 144 tomake the electrical connection, and will move the driven member from thesame contacts to break the connection. In my invention I, by the samemechanism, insure not only a quick break, but also and in additionthereto, I insure that. the make is quick and will prevent arcing orburning of the mechanism. The driving member which in this form of myinvention is the key, may be given different shapes and contours. Asuccessful and economical manner of manufacturing it is to stamp it frommetal forming a key 245 having an integral feat-her 246 to cotiperatewith a cotiperating opening in the driven member 29, Fig. 10. In the endofthe key 245 as well as in the end of key v-28, I preferably form arecess 247 to coiiperate with a locking plate 248. This plate 248 ispreferably dropped into a recess 249, Figs. 1 and 11, in the closedinsulating receptacle 6. Its arms 50, 50 take into the groove 247 andprevent the accidental or unauthorized removal of the driving member orkey 28, or 245, Fig. 9, as the case may be. This plate is held, in itsposition preferably by permitting itto rest upon the upper portion orhead 10 of the screw shell 11, a piece of insulation 54 beinginterposed, if desired.

Currentis supplied for example'by the feed wire 145 passing the bindingpost 46, spring contact 144, ring 47, spring contact 45, screw shellcontact 11, thence through the lamp (not shown) and out through thecenter contact 14, spring ears 19, 19, arms 15 and to the wire 51.

In the form of my invention described, the head or key 53 may be ofmetal as there is no need of it being-insulated. In some cases, however,I attach to the metallic hills and valleys a metallic body member 55,Figs. 14 and 15, in which casethere is no need of using a metallic ringsuch as 47 for the cur- 1 rent will pass directly through the bodymember 55 to complete the circuit. With such a construction aninsulating key 56, Fig. 14, is used.

In some instances I may form my driven 1 6 member out of a single pieceof material. Preferably for economy in manufacture the piece of materialis some suitable sheet metal from which the blank 60, Fig. 17, isstamped. This blank is provided with an opening 16 for the passage ofthe axle or arbor or other driving member and with wings 62, 62. Eachwingis also provided with a finger 63 which terminates in a cross arm64. In Fig. 17 one of the fingers 63 is broken away and its cross arm 64does not. appear in that figure.

When. the blank is bent upon itself as shown in Fig. 18, the wings 62,62 form the hills 35 and valleys 36. One end of the 3 fingers is bentsubstantially at right angles to its other end and the cross arms 64, 64are curved toward each other to form the' body or contact member 65,which makes connection directly with the spring contacts 45 and 144. Theblank is also provided with the holding notches 44, 44 to hold the arms43 of the spring 42 or other resilient member which may be.used.

In some instances I may form a recess 66, Fig. 19, in the side of thereceptacle 6 to expose the end 67 of a driving member 128. In this formof member there is no groove such as 247. Any suitable locking membersuch as a nut or washer 68 may be secured on the end of the drivingmember 128 through the recess 66, after it has been passed through thereceptacle 6. If desired, though it is not necessary, a locking plate248 such as shown in Fi 13 may be em-' ployed.

Having thus described this invention in connection with severalillustrative embodiments thereof to the details of which I do not desireto be limited, what is claimed as new and what it is desired to secureby Letters Patent is set forth in the appended claims:

1. In a mechanical movement, a driving and a driven member one adaptedto have a limited longitudinal movement with rela tion to the other, thedriven member provided with oppositely inclined surfaces forming hillsand valleys and a single fixed ll-shaped spring having two free ends,each end being adapted to directly contact with the hills and valleys.

2. In a mechanical movement, a driving member, a driven member mountedon the driving member and adapted to have a limited longitudinalmovement in relation to said driving member, said driven member beingprovided with oppositely inclined surfaces forming opposed hills and asingle fixed U-shaped spring having two free ends, each end beingadapted to directly contact with the hills and valleys.

3. A driven member for a mechanical movement comprising a disk and aseparate attached plate provided with oppositely inclined surfacesforming hills and valleys, some of the inclined surfaces being on thesurface of the plate and others on the edge of the plate.

4. The combination of a driving and a driven member for a mechanicalmovement, the driven member comprising a body member provided withopenings and a separate member stamped from sheet metal and providedwith oppositely inclined surfaces and with fingers, the fingers takingthrough the apertures in the body member and immovably securing the bodymember and the separate member together and means to reciprocate thedriven member on the driving member.

5. In a mechanical movement the combination of a support, a drivingmember provided with a non-circular portion and near one end with agroove, a driven member having a non-circular openingcooperating withthe driving member and provided with oppositely inclined surfacesforming hills and valleys, resilient means 'to coiiperate with the hillsand valleys, and means carried by the support for cooperating with thegroove in the driving member to prevent its unauthorized removal fromthe support.

6. In a mechanical movement the combination of a support,-a drivingmember pr0-.

vided with a non-circular portion and near one end with a groove, adriven member having a non-circular opening cooperating with the drivingmember and provided With oppositely inclined surfaces forming hills andvalleys, resilient means to cooperate with the hills and valleys, aplate carried by the support for cooperating with the groove in thedriving member to prevent its unauthorized removal from the support.

7. In a mechanical movement the combination of a driving member and adriven member each provided with means to prevent their relativerotation but permit one to have a longitudinal movement with relation tothe other, said driven member being formed of a non-conducting bodymember and a separate attached metallic sheet member provided withoppositely inclined surfaces on its face and edges forming hills andvalleys, and a fixed spring having one or more arms to coeperate withthe hills and valleys.

8. In a mechanical movement the combination of a driving member anda-driven member each provided with means to prevent their relativerotation but permit one to have a longitudinal movement with relation tothe other, said driven member being formed of a body member and a platehaving its surfaces and edges oppositely inclined, the said inclinedsurfaces forming hills and valleys, and a fixed spring having one ormore arms to cooperate with the hills and valleys.

9. In an electric light socket the combination of a single open mouthinsulating receptacle entirely closed except at its mouth, a screw shellcontact closing said mouth of the receptacle, means-to secure the screwshell contact'to the receptacle, and switch mechanism completelyinclosed and protected within the receptacle.

10. In an electric light socket the combination of a single open mouthinsulating receptacle entirely closed except at its mouth, a screw shellcontact closing said mouth of the receptacle, a center contact andlocking means securing the screw shell contact and the center contact tothe receptacle, and switch mechanism completely inclosed and protectedwithin the receptacle.

11. In an electric light socket the combination of a single insulatinghollow receptacle having an open mouth, a screw shell contact closingthe mouth of the receptacle, a

center contact located in the screw shell anism located in and protectedby the receptacle.

12. An article of manufacture comprising a screw shell for an electriclight socket, said screw shell having a portion of its upper surface cutand bent back upon itself to form a springcontact.

- 13. In an electric light socket the combination of a single insulatinghollow receptacle having an open mouth, a screw shell contact closingthe mouth of the receptacle, a center contact located in the screw shellcont-act and insulated from it, means securing the center contact to thereceptacle and at the same time securing the shell contact to thereceptacle and thereby closing the interior of the receptacle, aninsulating driving member, a metallic driven member located on thedriving member and adapted to have a limited longitudinal movement withrelation to the driving member, said driven member being provided withoppositely inclined surfaces forming hills and valleys, and a resilientmember cooperating with said hills and valleys.

14. In an electric light socket the combination of a single insulatinghollow receptacle having an open mouth, a screw shell contact closingthe mouth of the receptacle, a center contact located in the screw shellcontact and insulated from it, means securing the center contact to thereceptacle-and at the same time securing theshell contact to thereceptacle and thereby "closing the interior of the receptacle, aninsulating drivin member, a metallic driven member locatef on thedriving member and adapted to have a limited longitudinal movement withrelation to the driving member, said driven member being providedwithoppositely inclined surfaces forming hills and valleys, and a singlefixed resilient member having one or more arms to cooperate with thehills and valleys.

15. A switch mechanism for an electric light socket comprising an axleor arbor, a driven member mounted upon the axle or arbor, means betweenthe axle and arbor to insure their simultaneous rotary movement but topermit them to have a limited 1on gitudinal movement with relation toeach other, said driven member being provided with a metallic memberhaving oppositely inclined surfaces forming opposed hills and valleys,some of said oppositely inclined surfaces being on the edges of saidmetallic driven member and a fixed resilient mem ber having one or morearms to contact with the hills and valle s and cause the prising aninsulating body member, a sep-- arate metallic member provided withoppositely inclined surfaces forming hills and valleys, a contact membercarried by the body member'and adapted to make connection between thecontacts and a spring to directly contact with the hills and valleys.

17. In a key socket the combination of a key rotatable in eitherdirection, a switch mechanism operated by the rotation of the key ineither direction to make both a quick make or a quick break to preventsparking or arcing at both the making and breaking of the current uponthe rotation of the key in either directioni 18. In a key socket thecombination of a key rotatable in either direction, a laterally movabledriven member operated by the key in either direction of rotation of thekey, contacts carried by the socket, said laterally movable drivenmember being operated on rotation of the key in either direction to makea quick-make or a quick break with said contacts to prevent sparking orarcing atboth the making and breaking of the current.

19. In a key, socket the combination of center and side contacts, a keyrotatable in either direction, a member mounted on the key and operatedon rotation of the key in either direction, means between the key andmember to cause them to rotate together but permitting a relativelongitudinal move- ,ment with relation to each other to make both aquick make or a quick break to prevent sparking or arcing at both themaking and breaking of the current. v

20. In a key socket the combination of a center and side contact, a keyadapted to rotate in either direction, a member mounted on the key,means between the key and memberto cause them to rotate together butpermitting a relative longitudinal movement of the member on the key onthe rotation of the key in either direction to make both a quick makeand a quick break to prevent sparking or arcing at both the making andbreaking of the current on the rotation in either direction of the key.

21. In an electric light socket the combination of the-center and sidecontacts, a driving member and a driven member adapted to rotatetogether but one having a limited longitudinal movement with relation tothe other, a contact member and hills and valleys carried by the drivenmember, a fixed resilient member adapted to cooperate with the hills andvalleys, said driven-member being adapted to directly make and break thecircuit to insure both a quick make and a quick break and fixed contactsto cooperate withthe contact carried by the driven member.

22. In an electric light socket the combination of center and sidecontacts, spaced contacts one connected to the side contact and one toone of the feed wires, an insulating driving member, a conducting drivenmember provided with hills and valleys and prevent arcing or sparking onbot-h the make and break of the current.

24. In an electric light socket the combination with center and sidecontacts, spaced contacts one connected to the side contact and theother to one of the feed wires, a key or arbor, a driven member splinedto the key or arbor and adapted to directly contact with the dividedcontacts, and means including the driven member to make directly both a.quick make with the spaced contacts, as well as a quick break from them,to prevent arcing on both the make and break of the current.

25. In an electric light socket the combination with center and sidecontacts, spaced contacts one connected to the side contact and theother to one of the feed wires, a key or arbor, a driven member splinedto the key or arbor and adapted to directly contact with the spacedcontacts, said driven member being provided with oppositely disposedhills and valleys and a single fixed spring member having one or morearms to cooperate with the hills and valleys to insure a quick make aswell as a quick break of the current.

26. An electric light socket comprising a one piece receptacle having anopen mouth, a screw shell contact closing said mouth, a center contactmounted in the screw shell contact and insulated from it, securing meansholding both the center contact and the screw shell contact to thereceptacle, an axle or key mounted in the receptacle and having anon-circular portion, a driven member mounted on the axle or arbor andhaving complementary surfaces to engage with the axle'or arbor, dividedcont-acts located in the receptacle and adapted to directly cooperatewith the driven member, hills and valleys carried by the driven memberand a single fixed spring having a plurality of arms adapted tocotiperate with the hills and valleys.

27. An electric light socket comprising a one piece receptacle having anopen mouth, a screw shell contact closing said mouth, a center contactmounted in the screw shell contact and insulated from it, securing meansholding both the center contact and the screw shell contact to thereceptacle, an axle or key mounted in the receptacle and having anon-circular portion, a driven member mounted on the axle or arbor and.having complementary surfaces to engage with the axle or arbor andformed of an insulating body member and a metallic plate havingoppositely inclined surfaces forming hills and valleys, and a conductingplate located on the insulating body member and adapted to directlycontact with divided contacts, divided contacts located in thereceptacle, and a single fixed spring having a plurality of arms adaptedto cooperate with the hills and valleys and cause the driven member todirectly make a quick make and a quick break ixith the divided contactsto prevent arcing both on the making as well as the breaking of thecurrent.

28. A key for an electric light socket stamped out of metal and providedwith an integral spline and at one end with a groove.

29. An article of manufacture comprising" a screw shell for an electriclight socket, and a spring contact secured directly to the head of thescrew shell. 7

30. 'A driven member for a mechanical movement comprising an integralbody member and plate I stamped from sheet metal, the latter beingprovided with inclined surfaces forming hills and valleys some of theinclined surfaces being on the surface of the plate and others on theedge of the plate.

31. A driven member for a mechanical movement comprising an integralbody member and plate stamped from sheet metal, the latter beingprovided with in clined surfaces forming hills and valleys, and withretarding notches.

32. A blank to form the driven member of a mechanical movementcomprising a central member, wings on either side of the central memberand fingers on each wing.

33. A blank to form the driven member of a mechanical movementcomprising a central member, wings on either side of the central memberand fingers on each wing, and cross arms on each finger.

34. In an electric light socket the combination of a single open mouthinsulating receptacle entirely closed except at the mouth, a screw shellcontact closing said mouth of the insulating receptacle, a centercontact, locking means securing the screw shell contact to theinsulating receptacle, a rotary driving member, a rotary and laterallymovable driven member, spaced contacts onc connected to one of the teedwires and one to the screw shell contact, and means to cause the drivenmember to move laterally on the driving member and directly contact withthe spaced contacts.

35. In an electric light socket the combination of a single open mouthinsulating receptacle entirely closed except at the mouth, a screw shellcontact closing said mouth of the. insulating receptacle, a centercontact, locking means securing the screw shell contact to theinsulating receptacle, a rotary driving member, a rotary and laterallymovable driven member provided with oppositely inclined surfaces forminghills'and valleys, spaced contacts one connected to one of the feedwires and one to the screw shell contact, and a fixed spring having oneor more arms contacting with the hills and valleys.

36. In a mechanical movement, a driving and driven member, one adaptedto have limited movement with relation to the other,

- oppositely inclined surfaces upon one of the members forming hills andvalleys, and a compression member .adapted to operate upon saidoppositely inclined surfaces to actuate the driven member.

37 In a mechanical movement the combination of a driving member, aplurality of oppositely inclined surfaces forming hills and valleysadapted to be operated by said driving member, a driven member, and acompression member adapted to slide on the oppositely inclined surfacesto move the driven member.

38. In a mechanical movement the combination of a driving member, aplurality of oppositely inclined surfaces forming hills wvith acompression member, a driven member, and a compression member carried bythe driven member.

40. In an electric light socket, the combination of a driven member,oppositely inclined surfaces actuated by the driving ing member, saidsurfaces being provided with one or more notches to cooperate with aflexible member, a driving member, a flexible member carried by thedriven member and electrical contacts, actuated by the driven member.

TONJ ES AUGUST CARL BOTH. Witnesses:

LEON STRAUSS, BEN STRAUSS.

